nextcloud/lib/private/db/sqlitemigrator.php

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<?php
/**
* Copyright (c) 2014 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC\DB;
use Doctrine\DBAL\DBALException;
use Doctrine\DBAL\Schema\Schema;
class SQLiteMigrator extends Migrator {
/**
* @var \OCP\IConfig
*/
private $config;
/**
* @param \Doctrine\DBAL\Connection $connection
* @param \OCP\IConfig $config
*/
public function __construct(\Doctrine\DBAL\Connection $connection, \OCP\IConfig $config) {
parent::__construct($connection);
$this->config = $config;
}
/**
* @param \Doctrine\DBAL\Schema\Schema $targetSchema
* @throws \OC\DB\MigrationException
*
* For sqlite we simple make a copy of the entire database, and test the migration on that
*/
public function checkMigrate(\Doctrine\DBAL\Schema\Schema $targetSchema) {
$dbFile = $this->connection->getDatabase();
$tmpFile = $this->buildTempDatabase();
copy($dbFile, $tmpFile);
$connectionParams = array(
'path' => $tmpFile,
'driver' => 'pdo_sqlite',
);
$conn = \Doctrine\DBAL\DriverManager::getConnection($connectionParams);
try {
$this->applySchema($targetSchema, $conn);
$conn->close();
unlink($tmpFile);
} catch (DBALException $e) {
$conn->close();
unlink($tmpFile);
throw new MigrationException('', $e->getMessage());
}
}
/**
* @return string
*/
private function buildTempDatabase() {
$dataDir = $this->config->getSystemValue("datadirectory", \OC::$SERVERROOT . '/data');
$tmpFile = uniqid("oc_");
return "$dataDir/$tmpFile.db";
}
/**
* @param Schema $targetSchema
* @param \Doctrine\DBAL\Connection $connection
* @return \Doctrine\DBAL\Schema\SchemaDiff
*/
protected function getDiff(Schema $targetSchema, \Doctrine\DBAL\Connection $connection) {
$platform = $connection->getDatabasePlatform();
$platform->registerDoctrineTypeMapping('tinyint unsigned', 'integer');
$platform->registerDoctrineTypeMapping('smallint unsigned', 'integer');
return parent::getDiff($targetSchema, $connection);
}
}